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arcmsr: simplify ioctl data read/write

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Signed-off-by: Ching Huang <ching 2048@areca.com.tw>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Ching Huang
2014-09-24 17:33:34 +08:00
committed by Christoph Hellwig
parent 3185ea6390
commit 2e9feb434a
3 changed files with 119 additions and 229 deletions
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13
drivers/scsi/arcmsr/arcmsr.h
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@@ -52,7 +52,7 @@ struct device_attribute;
#define ARCMSR_MAX_FREECCB_NUM 320
#define ARCMSR_MAX_OUTSTANDING_CMD 255
#endif
#define ARCMSR_DRIVER_VERSION "v1.30.00.04-20140428"
#define ARCMSR_DRIVER_VERSION "v1.30.00.04-20140919"
#define ARCMSR_SCSI_INITIATOR_ID 255
#define ARCMSR_MAX_XFER_SECTORS 512
#define ARCMSR_MAX_XFER_SECTORS_B 4096
@@ -107,10 +107,11 @@ struct CMD_MESSAGE
** IOP Message Transfer Data for user space
*******************************************************************************
*/
#define ARCMSR_API_DATA_BUFLEN 1032
struct CMD_MESSAGE_FIELD
{
struct CMD_MESSAGE cmdmessage;
uint8_t messagedatabuffer[1032];
uint8_t messagedatabuffer[ARCMSR_API_DATA_BUFLEN];
};
/* IOP message transfer */
#define ARCMSR_MESSAGE_FAIL 0x0001
@@ -678,15 +679,15 @@ struct AdapterControlBlock
unsigned int uncache_size;
uint8_t rqbuffer[ARCMSR_MAX_QBUFFER];
/* data collection buffer for read from 80331 */
int32_t rqbuf_firstindex;
int32_t rqbuf_getIndex;
/* first of read buffer */
int32_t rqbuf_lastindex;
int32_t rqbuf_putIndex;
/* last of read buffer */
uint8_t wqbuffer[ARCMSR_MAX_QBUFFER];
/* data collection buffer for write to 80331 */
int32_t wqbuf_firstindex;
int32_t wqbuf_getIndex;
/* first of write buffer */
int32_t wqbuf_lastindex;
int32_t wqbuf_putIndex;
/* last of write buffer */
uint8_t devstate[ARCMSR_MAX_TARGETID][ARCMSR_MAX_TARGETLUN];
/* id0 ..... id15, lun0...lun7 */